Question

the average adult has a blood volume of about.......

Answer 1

In an average healthy adult, the volume of blood is about one-eleventh of the body weight. Most sources state the volume of blood in an average human adult, who is between 150 to 160 pounds, as between 4.7 and 5 liters, although the more recent sources state the volume of blood in an average adult as 4.7 liters.

Answer 2

Wikipedia states that there is 5-6 litres of blood in our body